癌細胞從原處走到另一地方(轉移,Metastasis),均需透過血液或淋巴系統作交通渠道。391Please respect copyright.PENANA8wjOSm2VAl
391Please respect copyright.PENANA5Vgbea62bf
391Please respect copyright.PENANAfCDR14T01F
有不少癌細胞轉移到另一器官後會呈「休養」狀態,不迅速繁殖,而是長期潛伏在另一器官內。391Please respect copyright.PENANAvu4xPJTsvh
391Please respect copyright.PENANAn7m6LcOldP
因此就算沒能檢測得到循環腫瘤細胞的存在,也不百分百等於未來不會出現癌細胞轉移事件。391Please respect copyright.PENANA72kpRb8wwI
391Please respect copyright.PENANA9uMf1yygb5
391Please respect copyright.PENANAAcSxJvpr28
(圖2)科學家分別把人類及老鼠的癌細胞注入到老鼠模型作研究,發現癌細胞發生轉移的機率是與目的地所含的NK cell數量有關係。391Please respect copyright.PENANANw8qmp1D3M
391Please respect copyright.PENANANVmcCbAru2
391Please respect copyright.PENANAUdoM3MJaft
目的地所含的NK cell越多,該地方出現癌細胞轉移的機率亦會越低。391Please respect copyright.PENANAyVPyn0sA2l
391Please respect copyright.PENANAWCSxY5spw4
之所以會出現這情況,除了是NK cell殺死癌細胞這可能性之外,科學家發現NK cell會釋放interferon-γ (IFN-γ)的物質,誘使癌細胞進入休養狀態,不進行自我繁殖。391Please respect copyright.PENANAnGmM8KKcah
391Please respect copyright.PENANAwuJ9HgDMdM
391Please respect copyright.PENANA1nHqSyc6ru
(圖3)奈何,至少在肝臟裡頭,一種名為Hepatic stellate cells會釋出CXCL12物質,CXCL12會阻礙NK cell的生長速度。391Please respect copyright.PENANAMHVF16wFKW
391Please respect copyright.PENANA8JdD45ntJm
391Please respect copyright.PENANAyLyWvoPrBJ
391Please respect copyright.PENANArDaEvEa7mt
久而久之,便再也沒有足夠的NK cell抑制癌細胞的生長,而當潛伏在另一器官的癌細胞快速繁殖之時,這亦是轉移(Metastasis)被鑑定發生之時。391Please respect copyright.PENANAOurRkeMY5Y
391Please respect copyright.PENANAKXO3btjo8A
391Please respect copyright.PENANAyVNZ9UUkG5
對此,研發藥物或療程確保NK cell長期處於足夠水平,或許是一道避免癌細胞發生轉移的大方向。391Please respect copyright.PENANAVh7UJzLAow
391Please respect copyright.PENANAYPD6vRVxON
如果想我快啲出文的話,請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark,這對我非常之重要。391Please respect copyright.PENANAGUOoenYRlR
391Please respect copyright.PENANAV5ddahGa38
Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc391Please respect copyright.PENANANCZZDL2Xrf
391Please respect copyright.PENANArgXGKSk4mK
同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」,以課金的方式推動我繼續搜羅資料寫文,多謝。391Please respect copyright.PENANAAl7x7rlLWe
391Please respect copyright.PENANAZ3XPsK7fjx
Link:391Please respect copyright.PENANAhb2IwXziBM
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio391Please respect copyright.PENANAtyhsLeGQ2m
391Please respect copyright.PENANAeZt1eZ5Yn9
391Please respect copyright.PENANAqT8ApGZNHU
除非Facebook及IG重開侵侵的account,否則我的IG將不會再作更新,只會寄居本土LIHKG及Penana。391Please respect copyright.PENANAFCPvmCVBvf
391Please respect copyright.PENANAzO0XsvE2wh
Ref1:https://www.nature.com/articles/s41586-021-03614-z391Please respect copyright.PENANAKBan3bvtrj
arrow_back
科普專欄–薯不揀單
more_vert
-
info_outline Info
-
toc Table of Contents
-
share Share
-
format_color_text Display Settings
-
exposure_plus_1 Recommend
-
Sponsor
-
report_problem Report
-
account_circle Login
Search stories, writers or societies
Continue ReadingClear All
What Others Are ReadingRefresh
X
Never miss what's happening on Penana!
科普專欄–薯不揀單
Author:
薯仔聞茱莉
ISSUE #242
三十秒科學–潛伏在另一器官的癌細胞
LIKES 0
READS 387
BOOKMARKS 148
campaign
Request update 0
Sponsor
Login with Facebook
or Sign up/Login to comment or bookmark!
Click to load the next chapter
X
After each update request, the author will receive a notification!
smartphone100 → Request update
X
Sponsor again
Click to login
Login first to show your name as a sponsor.
Thank you for supporting the story! :)
Please Login first.
×
Write down what you like about the story
×
Reading Theme:
Font Size:
Line Spacing:
Paragraph Spacing:
Load the next issue automatically
Reset to default
×
People Who Like This